init.lua

minetest.register_node("quartz_geodes:quartz_block", {
	description = "Quartz Block",
	tiles = {"quartz_block.png"},
	groups = {cracky = 3},
	sounds = default.node_sound_stone_defaults(),
})

minetest.register_node("quartz_geodes:quartz_crystal", {
	description = "Quartz Crystal",
	tiles = {"quartz_crystal.png"},
	inventory_image = "quartz_crystal.png",
	drawtype = "plantlike",
	paramtype = "light",
	sunlight_propagates = true,
	paramtype2 = "wallmounted",
	groups = {cracky = 3},
	sounds = default.node_sound_stone_defaults(),
	node_box = {
		type = "fixed",
		fixed = {-5/16, -0.5, -5/16, 5/16, 5/16, 5/16}
	},
	selection_box = {
		type = "fixed",
		fixed = {-5/16, -0.5, -5/16, 5/16, 5/16, 5/16}
	},
})

geodes.register_geode("geodes:basalt", "geodes:calcite", "quartz_geodes:quartz_block", "quartz_geodes:quartz_crystal")